body,
p,
span,
ul,
li,
a,
b,
input,
img,
h1,
h2,
h3 {
    margin: 0;
    padding: 0;
}
ul {
    list-style: none;
    /*去掉圆点*/
}
a {
    text-decoration: none;
    /*去掉下划线*/
}
img {
    border: 0
}
.clearfloat {
    clear: both;
    height: 0;
    font-size: 1px;
    line-height: 0px;
}
/*header start*/

/*top-line start*/

.top-line {
    height: 3px;
    background-color: #85c155;
    /*高度设置不了*/
    _overflow: hidden;
}
/*top-line end*/

/*nav start*/

.navbox {
/*    margin: 0 auto;*/
    background-color: #fafafa;
}
.nav {
    width: 1000px;
    height: 80px;
    margin: 0 auto;
    padding: 0 15px;
    *position: relative!important;
    *z-index: 1000!important;
}
.logo {
    width: 116px;
    height: 35px;
    padding-top: 20px;
    float: left;
    display: block;
    background-image: url(../images/logo.png);
    background-repeat: no-repeat;
    background-position: 0px 20px;
}
.nav ul {
    width: 550px;
    margin-top: 25px;
    padding-left: 10px;
    float: left;
}
.nav ul li {
    padding: 0px 18px;
    float: left;
}
.nav ul li.other {
    position: relative;
    height: 40px;
    *top: 0px!important;
}
.nav ul li a {
    font-size: 18px;
    font-family: "Microsoft YaHei";
    color: #4BA733;
}
.nav ul li.other a {
    position: relative;
}
.nav ul .triangle {
    position: absolute;
    width: 0px;
    height: 0px;
    line-height: 0;
    left: 40px;
    top: 8px;
    border-width: 5px 4px 0;
    border-style: solid;
    border-color: #4BA733 transparent transparent;
    _border-style: solid dashed dotted dashed;
    *left: 40px!important;
    *top: 8px!important;
}
.nav .nav-ul-pop {
    display: none;
    position: absolute;
    top: 32px;
    left: -34px;
    padding-top: 5px;
    padding-bottom: 5px;
    background-color: #FFF;
    border: 1px solid #E0E0E0;
    z-index: 1000;
    *width: 100px!important;
}
.nav .nav-ul-pop a {
    display: block;
    width: 70px;
    height: 18px;
    line-height: 16px;
    padding: 5px 15px 5px 15px;
    text-align: right;
    color: #666;
    font-size: 16px;
}
.nav .nav-ul-pop a:hover {
    background-color: #C0BBBB;
}
.search-form {
    margin-top: 20px;
    float: right;
}
.search-form img {
    float: left;
}
.search-form span {
    height: 38px;
    float: left;
    border-top: 1px solid #ededed;
    border-bottom: 1px solid #ededed;
    background-color: #fff;
}
.search-form input.search-text {
    width: 195px;
    height: 32px;
    line-height: 32px;
    padding: 3px 5px;
    float: left;
    border-style: none;
    outline: none;
    background-color: #fff;
}
.search-form input.search-submit {
    width: 20px;
    height: 38px;
    padding-right: 0px;
    background-image: url(../images/search.png);
    background-repeat: no-repeat;
    background-position: center;
    border-style: none;
    background-color: #fff;
    _background-image: url(../images/search-change.png);
}
.search-form input.search-submit:hover {
    cursor: pointer;
    background-image: url(../images/search-change.png);
}
/*nav end*/

/*login start*/

.login {
/*    margin: 0 auto;*/
    background-color: #f3f3f3;
    *position: relative!important;
}
.login-box {
    width: 1000px;
    height: 175px;
    margin: 0 auto;
    position: relative;
}
.l-b-top {
    padding-top: 65px;
    padding-left: 9px;
    text-align: center;
    font-family: "Microsoft YaHei";
    font-size: 21px;
}
.l-b-top p {
    height: 50px;
    line-height: 50px;
    margin-right: 13px;
    display: inline-block;
    color: #333;
    /*    块级元素设置display: inline-block;问题解决办法:*zoom: 1!important;*display: inline!important;*/
    *zoom: 1!important;
    *display: inline!important;
}
.l-b-top a {
    width: 180px;
    height: 50px;
    line-height: 50px;
    margin: 0px 7px;
    display: inline-block;
    background-color: #88C833;
    color: #F7F7F7;
}
.l-b-top a:hover {
    background-color: #50a220;
}
.l-b-bottom {
    position: absolute;
    width: 195px;
    height: 25px;
    line-height: 25px;
    bottom: 19px;
    left: 495px;
    color: #999;
    _font-family: SimSun;
    *width: 195px!important;
}
.l-b-bottom span {
    height: 25px;
    float: right;
    _position: absolute;
    *position: absolute!important;
}
.l-b-bottom a {
    display: inline-block;
    width: 25px;
    height: 25px;
    margin: 0px 5px;
    float: left;
}
.l-b-bottom a.weibo {
    background-image: url(../images/weibo.png);
    background-repeat: no-repeat;
    background-position: center;
}
.l-b-bottom a.qq {
    background-image: url(../images/qq.png);
    background-repeat: no-repeat;
    background-position: center;
}
.l-b-bottom a.douban {
    background-image: url(../images/douban.png);
    background-repeat: no-repeat;
    background-position: center;
}
/*login end*/

/*header end*/

/*index-page start*/

.index-page {
    width: 1020px;
    margin: 0 auto;
    padding: 0 15px;
    margin-top: 40px;
}
.main {
    width: 680px;
    float: left;
}
/*最新推荐*/

h1.gbtitle {
    width: 680px;
    margin-bottom: 5px;
    padding-bottom: 6px;
    font-family: "Microsoft YaHei";
    font-size: 18px;
    font-weight: 400;
    color: #4C4C4C;
    border-bottom: 1px solid #E9E9E9;
}
.reco {
    margin-top: 20px;
    height: 250px;
}
.r-focus {
    position: relative;
    float: left;
}
.r-focus .r-f-content a {
    display: none;
}
.r-focus .r-f-content img {
    width: 330px;
    height: 235px;
}
.r-focus .r-f-content a.now {
    display: block;
    width: 330px;
    height: 235px;
}
.r-focus .r-f-explain {
    position: absolute;
    width: 330px;
    height: 70px;
    top: 165px;
    background-color: #000;
    filter: alpha(opacity=70);
    opacity: 0.7;
}
.r-focus .r-f-e-title a {
    display: none;
}
.r-focus .r-f-e-title a:hover {
    text-decoration: underline;
}
.r-focus .r-f-e-title a.now {
    display: block;
    margin-top: 15px;
    text-align: center;
    font-family: "Microsoft YaHei";
    color: #E9E9E9;
}
.r-focus .r-f-e-nav {
    margin-top: 8px;
    *margin-top: 12px!important;
    text-align: center;
}
.r-focus .r-f-e-nav li {
    display: inline-block;
    height: 8px;
    width: 8px;
    margin-left: 5px;
    margin-right: 5px;
    border-radius: 8px;
    background-color: #E9E9E9;
    *margin-left: 10px!important;
    *margin-right: 10px!important;
    *zoom: 1!important;
    *display: inline!important;
    _overflow: hidden;
}
.r-focus .r-f-e-nav li:hover {
    cursor: pointer;
}
.r-focus .r-f-e-nav li.now {
    background-color: #88C932;
}
.r-article {
    float: right;
}
.r-article ul {
    width: 330px;
    height: 248px;
    float: right;
    color: #666;
}
.r-article li {
    margin-bottom: 9px;
    _margin-bottom: 8px;
}
.r-article a {
    font-family: "Microsoft YaHei";
    color: #666;
}
.r-article a:hover {
    text-decoration: underline;
}
/*热门回答*/

h1.title-ask {
    margin-top: 27px;
    float: left;
    color: #0078B6;
    border-bottom-color: #C5EBF9;
}
.content {
    width: 334px;
    margin-top: 15px;
    padding-bottom: 15px;
    _font-family: SimSun;
}
.a-left {
    float: left;
}
.a-right {
    float: right;
}
/*科学·技术*/

h2.c-title {
    height: 35px;
    font-family: "Microsoft YaHei";
    font-size: 16px;
    font-weight: 400;
    color: #333;
}
.content ul {
    font-size: 14px;
    color: #999;
}
.content ul li {
    position: relative;
    height: 26px;
    line-height: 26px;
}
.content ul li div.point-6x6 {
    position: absolute;
    width: 5px;
    height: 5px;
    top: 50%;
    left: 5px;
    margin-top: -2.5px;
    background-color: #999;
    _overflow: hidden;
}
.content ul li a {
    margin-left: 16px;
    width: 298px;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
    color: #666;
    _font-family: SimSun;
}
.content a:hover {
    text-decoration: underline;
}
.content li.c-li-1 {
    height: 100px;
    list-style-type: none;
    *list-style-position: outside!important;
}
.content a.c-li-1-a {
    display: block;
    width: 135px;
    height: 90px;
    margin-left: 0px;
    float: left;
    position: relative;
}
.content a.c-li-1-a img {
    *display: inherit!important;
    *width: 135px!important;
    *height: 90px!important;
    *float: left!important;
}
.content a.c-li-1-a span {
    display: block;
    width: 135px;
    height: 90px;
    top: 0;
    left: 0;
    position: absolute;
    *display: inherit!important;
    *width: 135px!important;
    *height: 90px!important;
    *float: left!important;
}
.content a.c-li-1-a:hover span {
    background-color: #000;
    filter: alpha(opacity=40);
    opacity: 0.4;
    transition: all 0.4s ease-in-out 0s;
    *cursor: pointer!important;
}
.c-li-1 div {
    width: 189px;
    float: right;
}
.c-li-1 div h3 a {
    margin-left: 0px;
}
.c-li-1 div h3 {
    height: 42px;
    font-weight: 700;
    line-height: 21px;
}
.c-li-1 div p {
    height: 48px;
    margin-top: 10px;
    font-size: 12px;
    line-height: 20px;
}
.c-li-1 div p a {
    margin-left: 0px;
    font-size: 12px;
    color: #0078B6;
}
h1.title-group {
    margin-top: 27px;
    float: left;
    color: #4BA733;
    border-bottom-color: #CCF5C1;
}
/*side start*/

.side {
    width: 300px;
    margin-top: 42px;
    float: right;
}
.side-content h2 {
    height: 18px;
}
.side-content h2 a {
    font-size: 12px;
    font-family: Arial, Helvetica, sans-serif;
    color: #666;
    float: right;
    _font-family: SimSun;
}
.side-content h2 a:hover {
    text-decoration: underline;
}
.side-content ul {
    margin-top: 20px;
    font-size: 10px;
}
.side-content ul li {
    margin-bottom: 20px;
    font-size: 12px;
    font-family: Arial, Helvetica, sans-serif;
    _font-family: SimSun;
}
.side-content ul li a.group-img {
    float: left;
}
.side-content div.li-text {
    width: 232px;
    height: 48px;
    color: #999;
    float: right;
    line-height: 18px;
}
.side-content div.li-text h3 {
    display: inline;
}
.side-content div.li-text a {
    display: inline-block;
    font-size: 12px;
    font-weight: 400;
    color: #4AA933;
}
.side-content div.li-text a.group-name:hover {
    text-decoration: underline;
}
.side-content div.li-text a.default {
    color: #666;
}
.side-content div.li-text a.lt-img {
    width: 15px;
    height: 14px;
    margin-left: 5px;
    margin-right: 5px;
    vertical-align: middle;
    background: url(../images/1-icon.png) no-repeat -539px 0px;
}
.side-content div.li-text a.lt-img:hover {
    background: url(../images/1-icon.png) no-repeat -555px 0px;
}
.side-content div.li-text span {
    margin-left: 5px;
}
.side-content div.li-text p {
    margin-top: 5px;
    line-height: 18px;
    width: 232px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.tb-line {
    margin-top: 25px;
    margin-bottom: 10px;
    padding-top: 10px;
    padding-bottom: 15px;
    border-top: 1px solid #ededed;
    border-bottom: 1px solid #ededed;
}
.side-content ul.simple li {
    position: relative;
    height: 24px;
    line-height: 24px;
    margin-bottom: 0px;
    color: #D2D2D2;
}
.side-content ul.simple li div.point-3x3 {
    position: absolute;
    width: 3px;
    height: 3px;
    top: 50%;
    left: 3px;
    margin-top: -1.5px;
    background-color: #D2D2D2;
    _overflow: hidden;
}
.side-content ul.simple li a {
    display: inline-block;
    margin-left: 15px;
    width: 285px;
    color: #666;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
/*side end*/

/*index-page end*/

/*footer start*/

.footer {
    width: 1000px;
    height: 80px;
    margin: 0 auto;
    padding: 0 auto;
    margin-top: 30px;
    font-size: 12px;
    _font-family: SimSun;
}
.f-nav {
    text-align: center;
    line-height: 35px;
}
.f-nav a {
    margin-left: 10px;
    margin-right: 10px;
    color: #0078B6;
}
.f-nav a:hover {
    text-decoration: underline;
}
.f-info {
    text-align: center;
    line-height: 35px;
    border-top: 1px solid #ECECEC;
    color: #999;
}
/*footer end*/